The purpose of this Method Statement is to describe the methodology for structural work of Central Control Building and to details out the steps to be taken in meeting the technical requirements of Van Phong 1 thermal power plant project.
Comment Response Sheet (CRS) Project Title Van Phong BOT Thermal Power Plant Project Document Title METHOD SATEMENT FOR CENTRAL CONTROL BUILDING Document Type For Approval Document No VP1-0-L4-C-UCB-10042 Returned Status AC Prepared by CRS No VP1-0-L4-C-UCB-10042-C-CRS CRS Issued Date 09/06/2020 Engineer Construction Review Date Status O/C * Remarks No Section/ Page Owner’s Comment Response to Comment 04/05/2020 General comment: - This identified MS did not cover all activities to build a completed building - The constructor can refer to a general MS to carry out a specific activity, but he must state out clearly what he will refer to, so that Owner can understand a whole procedure - This MS is for Lot4’s scope of work The other 04/05/2020 O scope of work (i.e air conditioning, fire fighting 28/05/2020 C 04/05/2020 O 28/05/2020 C L4 work) will be submitted by the other consortium members The work sequence is mentioned in this MS However, reflecting the current structure work’s starting situation, this MS is focused on describing the earth work and structure work, so the MS of subsequent works will be 28/05/2020 Closed 2 04/05/2020 Backfilling for foundations ? Please state the works submitted later - Well noted and applied in this MS Backflling for foundation is added 28/05/2020 Closed Page of Comment Response Sheet (CRS) 04/05/2020 - HVAC works ? - Plumbing? - Finishing works ? etc -> Please state cleary the scope of works and interface management for this building - This MS is for Lot4’s scope of work The other 04/05/2020 O scope of work (i.e air conditioning, fire fighting 28/05/2020 C 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C work) will be submitted by the other consortium members and this MS is focused on the earth work and structure work, so the MS of subsequent works will be submitted later The interface among the work shall be 28/05/2020 Closed properly managed in accordance with the 04/05/2020 How about the works of: masonry, doors/windows, painting, tiling, , finishing etc ? Please clarify Finish work shall be conducted with approved material and refer to the Method statement for finish work which will be submitted later Consortium Agreement and site situation 28/05/2020 Closed 04/05/2020 Are there equipment operators? Well noted and added in this MS Rev.B 28/05/2020 Closed 04/05/2020 Is there bituminous coating? Well noted and added in this MS Rev.B 28/05/2020 Closed Page of Comment Response Sheet (CRS) 04/05/2020 Lack of finishing works Well noted and added in this MS Rev.B 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 O 09/06/2020 C 28/05/2020 Closed 04/05/2020 Please identify approved document number Well noted and added in this MS Rev.B 28/05/2020 Closed 04/05/2020 - Method statement for General concrete should be stated as a reference method to be applied for concreting works Well noted and added in this MS Rev.B 28/05/2020 Closed 10 27 04/05/2020 This is not Job safety analysis Doosan to provide the risk assessment and JSA based on Doosan risk management procedure 28/05/2020 OPEN Please refer to detail comment at risk assessment table Well noted and added in this MS Rev.B Job safety analysis and risk assessment is separated as article no 9.3.4 and 9.3.5 Job safety analysis is modified 09/06/2020 Closed Page of Comment Response Sheet (CRS) 11 34 04/05/2020 General comment for all layout drawings: - Lot 4/Subcon to present the interface management to avoid clashing to other structures that may occur during construction time: + The plan of excavation, access road, earth transportation, the potential of clashing to other structures + The plan/side drawings of concrete supplying, pumping for foundations, for columns, slabs + Schedule of major activities should be presented and followed Level schedule The space between turbine bldg and CCB is narrow, with consideration of this, North side of External scaffolding will be dismantle proper time to avoid the clash to TG bldg structural steel work The interface will be managed more obviously during the execution stage in reference with the approved DWG The other interface also will be managed as per site situation 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C 04/05/2020 O 28/05/2020 C All activity will be followed or managed in accordance with L3 schedule 28/05/2020 Closed 12 66 04/05/2020 Typo Noted and revised 28/05/2020 Closed 13 67 04/05/2020 General comment, please check for all calculation sheet: - Force to layer should be the concentrated force from layer - Support points are tie-rod positions - After we conformed from third party calculation the force from layer1 is a uniform load to layer beam, so that we suggest to keep same calculation that we submitted - We will revised 28/05/2020 Closed Page of Comment Response Sheet (CRS) 14 73 04/05/2020 Noted and revised Typo 04/05/2020 O 28/05/2020 C 28/05/2020 O 09/06/2020 C 28/05/2020 O 09/06/2020 C 28/05/2020 O 09/06/2020 C 28/05/2020 Closed 15 28 28/05/2020 Once the MDL is updated, please identify the number of referent document Well noted The document number will be updated after updating MDL 09/06/2020 Closed 16 29 28/05/2020 - Once the MDL is updated, please identify the document number of reference - Ms of finishing work will describe detail step of each specific activity This MS should state the sequence of finishing works in generally, for example finishing work will be carried out from inside to out side or from top to down and which one is first, which one is second to avoid interface and double work Well noted The document number will be updated after updating MDL The finish work will be start from 1st floor, 2nd and ground floor to 3rd floor The detail sequence of finishing work will be described later with consideration of interface with other works 09/06/2020 Closed 17 38 28/05/2020 Please address where is risk assessment and where is Job safety analysis in this document based on Doosan's risk assessment procedure? Job safety analysis and risk assessment is separated as article no 8.3.1 and 8.3.2 Job safety analysis is modified 09/06/2020 Closed Page of Comment Response Sheet (CRS) 09/06/2020 No appendix was found Additional Notes (if any) * O - Open, C – Closed 18 Well noted and added in this MS Rev.D 09/06/2020 Closed O Page of AP APPROVED Approved AC APPROVED WITH COMMENT Contractor to revise the correction and resubmit NA NOT APPROVED Revise the correction and resubmit before proceeding RE REVIEWED For Approval Information acknowledged with no comment RC REVIEWED WITH COMMENT Information acknowledged with comments Note: Approval or comment does not relieve the Contractor of all obligations covered under contract Discipline: Civil 18 Jun 20 Date: D 12-Jun-2020 For Approval J.H CHOI K.S KIM Y.J LEE C 29-May-2020 For Approval J.H CHOI K.S KIM Y.J LEE B 15-May-2020 For Approval J.H CHOI K.S KIM Y.J LEE A 23-Apr-2020 For Approval J.H CHOI K.S KIM Y.J LEE REV DATE DESCRIPTION Approved Checked Prepared OWNER VAN PHONG POWER COMPANY LIMITED PROJECT Van Phong BOT Thermal Power Plant Project Status □Approved □Approved with Comment □Not Approved □Reviewed OWNER’S ENGINEER Pöyry Switzerland Ltd EPC CONTRACTORS IHI–TESSC–CTCI–DHI CONSORTIUM PROJECT DOCUMENT No REV VP1-0-L4-C-UCB-10042 D DOCUMENT TITLE METHOD STATEMENT FOR CENTRAL CONTROL BUILDING EPC EPC DOCUMENT No VP1-0-L4-C-UCB-10042 Doosan Heavy Industries and Construction REV D Page | METHOD STATEMENT FOR CENTRAL CONTROL BUILDING TABLE OF CONTENTS PURPOSE APPLICATION…… 3 REFERENCE CODE & STANDARD .3 MANPOWER & EQUIPMENT .3 4.1 MANPOWER…………………………………………………………………………….3 4.2 EQUIPMENT…………………………………………………………………………….4 RESPONSIBILITIES PROCEDURE AND SEQUENCE .5 6.1 Survey & Setting-out…………………………………………………………………7 6.2 Excavation work………………………………………………………………………7 6.3 Forms/Shuttering…………………………………………………………………… 6.4 Reinforcement Fixing…………………………………………………………………8 6.5 Concreting…………………………………………………………………………… 6.6 Concept and Sequence of Building Structure ………………………………………9 6.7 Walkway protection and external scaffolding………………………………………….25 6.8 Waterproofing work ……… ………………………………………………………… 26 6.9 Backfill work ………………………………………………………………………… …… 27 6.10 Plumbing work ……………………………………………………………… …………….27 6.11 Finish Work …………………………………………………………………… ………… 29 6.12 Concrete Repairing work ……………………………………………………… …………29 INSPECTION AND TESTING 29 ENVIRONMENT, HEALTH AND SAFETY (EHS) .30 APPENDIX 1: METHOD STATEMENT DRAWING APPENDIX 2: CALCULATION FOR FDN APPENDIX 3: CALCULATION OF FORMWORK FOR BEAMS 800X1100 APPENDIX 4: CALCULATION OF FORMWORK FOR BEAMS 700X800 APPENDIX 5: CALCULATION FOR SLAB APPENDIX 6: CALCULATION OF FORMWORK FOR COLUMNS APPENDIX 7: CATOLOG OF SCAFFOLDING Page | METHOD STATEMENT FOR CENTRAL CONTROL BUILDING 1.0 PURPOSE The purpose of this Method Statement is to describe the methodology for structural work of Central Control Building and to details out the steps to be taken in meeting the technical requirements of Van Phong thermal power plant project Plant Project/Project: Van Phong BOT Thermal Power Plant Project Company/Owner: Van Phong Power Company Limited (VPCL) Contractor: EPC 2.0 APPLICATION This Method Statement is applicable to the implementation of Lot4’s construction scope of work for Central Control Building 3.0 REFERENCE DOCUMENTS AND STANDARDS - ACI 347-Guide to formwork for concrete - ACI 304-Guide for measuring, mixing, transporting, and placing concrete - ACI 301-Specifications for structural concrete for buildings - ACI 318-Building Code Requirements for Structural Concrete - ACI-305R-Guide to hot weather concreting - VP1-0-L4-C-GEN-10007 MS for General concrete work - VP1-0-L4-C-GEN-10011 ITP for General concrete work - VP1-0-L4-C-GEN-10008 MS for Excavation and backfilling works - VP1-0-L4-C-GEN-10012 ITP for Excavation and backfilling works - VP1-0-L4-C-GEN-10027 MS for Water proofing of underground concrete structures - VP1-0-L4-C-GEN-10028 ITP for Water proofing of underground concrete structures - VP1-0-L4-C-GEN-10025 MS for Concrete repair work - MS for Painting work (this will be submitted later) - MS for General finishing work (this will be submitted later) - MS for Plumbing work (this will be submitted later) - Design Drawing VP1-0-L4-A-UCB-02101 ~ VP1-0-L4-A-UCB-02214 Page | METHOD STATEMENT FOR CENTRAL CONTROL BUILDING 4.0 MANPOWER AND EQUIPMENT 4.1 MANPOWER 4.1.1 Indirect Labor No Position Quantity Site Manager Site Engineer 3 Quality Manager QC Engineer Surveyor Safety Manager Safety Supervisor 4.1.2 Direct Labor No Position Quantity Foreman Carpenter 18 Rebar worker 20 Concrete worker 12 Scaffolding worker 20 Common worker 15 Equipment operators 4.2 EQUIPMENT No Position Spec/Capacity Remark Excavator 1.2 m3 Bending machine 2.5 kw Cuting machine 2.5 kw Welding machine Page |